Shell Helix Ultra ECT C3 features its most advanced emissions-compatible technology that helps to keep diesel particulate filters clean and maintain engine performance. It helps to reduce engine friction, providing enhanced fuel economy. The fully synthetic formulation uses Shell's most advanced emissions-compatible technology to protect gasoline engine exhaust catalysts and keep diesel particulate filters clean, preventing ash build-up that can block the exhaust system and reduce engine performance. Shell Helix Ultra ECT can be used for modern gasoline engines, diesel engines with particulate filters, and gas engines. Specifications, Approvals & Recommendations: ACEA C3, API SN, MB-Approval 229.51, 229.31, BMW LL-04, GM dexos2TM - License number GB2C0710014, Chrysler MS-11106. Please note that product specifications may vary and may not be available in all regions. Consult our resources for specific vehicle recommendations.